Rope or cable drive for threshing-machines.



No. 732,690. PATENTED JUNE so, 1903.

'G.- E. WILSON.

ROPE 0R CABLE DRIVE FOR THRESHING MACHINES. APPLICATION nLnn mm 4, 1901.

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UNITED STATES- Patented June 30, 1903.

PATENT OFFICE.

GEORGE E. -WILSON, OF STILLWATER, MINNESOTA.

SPECIFICATION forming part of Letters Patent No. 732,690, dated June 30,1903.

Application filed June 4,1901- Serial No. 63,104. (No model.)

To all whom, it may concern:

Be it known that I, GEORGE E. \VILSON, a citizen of the United States,residing at Stillwater, in the county of Washington and State ofMinnesota, have invented certain new and useful Improvements in Rope orCable Drives for Threshing-Machines, of which the follow ing isspecification.

The chief object of the invention is to util- Io ize in combination thedistinctive advantages of a belt-drive for the threshing-cylinder and ofa main driving-cable actuated from a pulley independently supported. Bythis arrangement the tightening of the cable is maintained by saiddrive-pulley. The pulleys on the thresher by reason of the use of thecable need not be in exact alinement, but may be in a plurality ofparallel planes and placed closer together than is possible with afiat-belt connection, and the flat-belt drive,

transmitting power through the beater-shaft to the cylinder-shaft, willallow slip to the cylinder pulley whenever the cylinder is choked byexcess of feed or by pieces of metal,

such as broken teeth, &c.

In the accompanying drawing, forming part of this'specification, thefigure is a perspective side elevation of the thresher and thetransmission-pulley of an engine provided with my invention.

In the drawing, A represents a threshingmachine of ordinaryconstruction.

1 represents the beater-shaft, upon which is mounted a grooved pulley 2and a flat-tread belt-pulley 3, said flat-tread pulley being connectedby a belt 4 to the cylinder-pulley 5. 6 represents a grooved pulleymounted upon the counter-shaft which operates the cleaning mechanism. 7represents a doublegrooved pulley mounted upon the shaft of ley 7,passing through the inner groove there-.

of, thence around the lower stacker-pulley 8, thence over theidler-pulley 12, under the pulley 7, and over the guide-pulley 13 to thedriving-pulley of the engine.

As will be noted, I provide grooved pulleys for the mainactuating-shafts of the threshing-machine except the cylinder-shaft andconnect these grooved pulleys by an endless cable with a grooveddrive-wheel on the engine. No belt-tightening devices are used inconnection with the rope-drive, as the same is kept tightened by theposition of the grooved engine-pulley with reference to the pulleys ofthe machine. The cylinder-shaft, as shown, is connected by a flat-beltdrive with one of the grooved pulleys. With this belt-drivebelt-tightening devices are used, as shown. The result of thisarrangement, is that the operation of the machine will not be affectedby the clogging of the cylinder, since the cylinder-belt will slip,whereas the cable running around'the grooved wheels of the other shaftsand passing over the grooved enginepulley will not slip; also thatuniform power is applied to the different grooved pulleys of themachine, since thecable is kept tight by V a pull exerted upon it from apulley supported independently of the machine instead of adjacent tosome pulley, as would be the case in a belt-tightener, and, further,that all of the grooved pulleys can be arranged in a series of parallelplanes. By means of the secondary flat-belt drive for the cylinder itwill be'evident that a greater or lesser power may be applied to thecylinder than applied to the main driving-pulleys through the maindrive.

By driving directly from the engine to a series of points on thethreshing-machine I overcome many objections incident to driving to someone point, notably from the engine to the cylinder, which necessitatesdrawing upon it as a source of supply for all the power necessary tooperate various other p'arts of the machine.

I claim- 1. The combination with a'threshing-machine and the drive-wheelof an engine, of a.

series of grooved pulleys carried by actuating-shafts of the machine, anendless cable running over said grooved pulleys and said drive-pulley, afiat-tread pulley carried by one of the grooved-pulley shafts, aflat-tread pulley carried by the cylinder-shaft of the machine, and afiat belt connecting said fiattread pulleys.

2. The combination with a threshing-ma chine, of a grooved drive -Wheelsupported independently of the machine, a series of groovedactuating-pulleys carried by the machine and arranged in a series ofparallel planes, an endless cable running over said groovedmachine-pulleys and grooved drivewheel, a fiat-tread belt-pulley carriedby one of the grooved machine-pulley shafts, a fiattread belt-pulleycarried by the cylinder-shaft of the machine, and a flat belt connectingsaid belt-pulleys whereby movement of the drive wheel away from themachine will tighten the cable upon the grooved pulleys of the machinewithout afiecting the belt-drive of the cylinder-shaft.

GEORGE E. 'WILSON.

Witnesses:

H. S. JOHNSON, EMILY EASTMAN.

